Linux security courses can help you learn system hardening, user access controls, network security protocols, and incident response strategies. You can build skills in configuring firewalls, implementing encryption techniques, and conducting security audits. Many courses introduce tools like iptables for firewall management, OpenSSL for encryption, and Wireshark for network analysis, showing how these skills are applied in practical work to protect systems from vulnerabilities and threats.

Pearson
Skills you'll gain: Firewall, Linux Administration, Authorization (Computing), Linux Servers, Security Controls, Linux, Hardening, Authentications, Network Security, Linux Commands, System Configuration, Servers, Server Administration, Encryption, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Firewall, Network Security, Linux, Linux Administration, Linux Servers, Network Administration, Security Controls, Hardening, Ubuntu, Linux Commands, File Management, System Configuration, Command-Line Interface
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Virtual Machines, Virtualization, Containerization, Docker (Software), Cloud Infrastructure, Data Storage, Infrastructure as Code (IaC)
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux, Linux Administration, Operating System Administration, File Systems, User Accounts, Systems Administration, File Management, Performance Tuning, System Configuration, Security Controls
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: File Systems, Linux Administration, Data Storage, Data Storage Technologies, File Management, Linux, Operating Systems, Linux Commands, Data Management, Disaster Recovery
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux, Linux Commands, Bash (Scripting Language), Linux Servers, Operating System Administration, Shell Script, Unix Shell, OS Process Management, Network Administration, System Configuration, Command-Line Interface, System Monitoring, Operating Systems, Performance Tuning
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Commands, Network Administration, Network Analysis
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Network Troubleshooting, Linux Administration, Linux Servers, Linux, Linux Commands, Dynamic Host Configuration Protocol (DHCP), General Networking, Network Protocols, Network Administration, Ubuntu, Red Hat Enterprise Linux, System Configuration, YAML
Intermediate · Course · 1 - 4 Weeks

Pearson
Skills you'll gain: Linux Administration, User Accounts, Operating System Administration, Linux, File Systems, Systems Administration, Authorization (Computing), Security Controls, Identity and Access Management, File Management
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Apache, File Transfer Protocol (FTP), Linux Servers, Linux Administration, Linux, Web Servers, Remote Access Systems, Command-Line Interface, Unix Commands, File Management, Network Protocols, Network Performance Management, Security Controls
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Linux, Linux Commands, Operating System Administration, User Acceptance Testing (UAT), Systems Administration, System Testing, Command-Line Interface, Service Management, User Accounts, File Management
Intermediate · Course · 1 - 4 Weeks

University of Colorado System
Skills you'll gain: Penetration Testing, Application Security, Vulnerability Scanning, Secure Coding, Exploitation techniques, Software Design Patterns, Vulnerability Assessments, Amazon Web Services, SQL, Amazon Elastic Compute Cloud, Operating Systems, C (Programming Language)
Intermediate · Course · 1 - 4 Weeks